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Graduate Educational Information Service: Test Prep Review
Contains great information to help students prepare for many national standardized tests, including the SAT, PSAT, ACT, GED, and many others. Along with tips and strategies, there are a number of free practice tests.
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Khan Academy: Innate Immunity
The human body requires a multilayered immune system to keep it running smoothly. The two main classes of the immune system are the innate immune system and the adaptive immune system, or "acquired immunity". This article discusses the...
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Khan Academy: Neuron Action Potentials: The Creation of a Brain Signal
Explains how neurons work during the formation and transmission of brain signals.
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Khan Academy: Phagocytosis
Have you ever wondered how a virus or other infectious agent invades a cell to start an infection? Some objects, like viruses, bacteria, or other particles are too large to transport through the plasma membrane. So, cells engulf the...
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Khan Academy: Test Prep: Mcat: Chemical Processes: Covalent Bonds: Intramolecular and Intermolecular Forces
Explains what intramolecular and intermolecular forces are and the different types for each. Includes lots of examples.
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Khan Academy: Test Prep: Mcat: Chemical Processes: Stereochemistry: Chiral Drugs
Explains the concept of chirality and how it is applied in the development of pharmaceuticals.
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Khan Academy: Test Prep: Mcat: Chemical Processes: Separations and Purifications: Principles of Chromatography
Explains what chromatography is and how its principles are applied when separating mixtures.
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Khan Academy: Single and Multiple Covalent Bonds
Explains what covalent bonds are and the difference between them and ionic bonds. Discusses the properties of polar and non-polar covalent bonds, and single and multiple covalent bonds, and gives analogies and examples of how covalent...
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Khan Academy: Using the Right Hand Rule
Physicists use a hand mnemonic known as the right-hand rule to help remember the direction of magnetic forces. The right-hand rule is based on the underlying physics that relates magnetic fields and the forces that they exert on moving...
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Khan Academy: Freezing Point Depression Osmometer to Measure Serum Osmolality
Questions related to osmolality and colligative properties for the MCAT are provided on this site.
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Khan Academy: Converging and Diverging Lenses in a Lab
This passage will test your knowledge on lenses.
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Khan Academy: Rollercoasters Are Energy at Work!
This passage will test your knowledge on work and energy.
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Khan Academy: Ancient Greek Catapults and Medical Packs
This passage will test the knowledge of students who are taking the MCAT. This question asks students to work with launch velocity.
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Khan Academy: Why Do We Believe That There Are Universal Emotions?
Questions related to universal emotions that can be used for test prep for the MCAT.
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Khan Academy: What Separates Science From Art?
Practice critical analysis and reasoning skills with this reading excerpt from the MCAT.
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Khan Academy: Theories of Language Acquisition
This five-question quiz focuses on Theories of Language Acquisition.
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Khan Academy: Theories of Attitude and Behavior Change Questions
This ten-question quiz helps to prepare for the MCAT pertaining to theories of attitude and behavior change.
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Khan Academy: The Only Known Case of an Hiv Cure
This is a 5-question biological sciences quiz to prepare for the MCAT. It uses the article "The Only Known Case of an HIV Cure."
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Khan Academy: The Mechanics of Standing Balance
This is a 5-question quiz to help prepare for the MCAT. It uses the analogy between a standing patient and an inverted pendulum and the mechanics of standing balance.
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Khan Academy: Ideal Gases in Medicine
This passage tests your knowledge on the kinetic molecular theory of gases using the five-question quiz.
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Khan Academy: The Honest Truth About Dishonesty
This is a four-problem practice question for the CARS test using the article "The Honest Truth about Dishonesty."
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Khan Academy: The Happy American
This is a four-problem practice question for the CARS test using the article "The Happy American."
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Khan Academy: Thermodynamics Questions
This is a 10-question quiz pertaining to thermodynamics.
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Khan Academy: Thermochemistry Questions
This is a ten-question quiz pertaining to Thermal Chemistry.